<template>
  <div>
    <el-alert title="添加商品消息提示的文案" type="info" center show-icon></el-alert>

    <el-card>
      <el-steps :active="activeIndex-0" finish-status="success" align-center>
        <el-step title="基本信息"></el-step>
        <el-step title="商品参数"></el-step>
        <el-step title="商品属性"></el-step>
        <el-step title="商品图片"></el-step>
        <el-step title="商品内容"></el-step>
        <el-step title="完成"></el-step>
      </el-steps>

      <!-- tab区域 -->
      <el-form
        :model="addGoodsForm"
        :rules="addGoodsRules"
        ref="addFormRefs"
        label-width="100px"
        label-position="top"
        class="demo-ruleForm"
      >
        <el-tabs
          :tab-position="'left'"
          v-model="activeIndex"
          :before-leave="beforeLeave"
          @tab-click="tabClicked"
        >
          <!-- 基本信息 -->
          <el-tab-pane label="基本信息" name="0">
            <el-form-item label="商品名称" prop="goods_name">
              <el-input v-model="addGoodsForm.goods_name"></el-input>
            </el-form-item>
            <el-form-item label="商品价格" prop="goods_price">
              <el-input v-model="addGoodsForm.goods_price"></el-input>
            </el-form-item>
            <el-form-item label="商品重量" prop="goods_weight">
              <el-input v-model="addGoodsForm.goods_weight"></el-input>
            </el-form-item>
            <el-form-item label="商品数量" prop="goods_number">
              <el-input v-model="addGoodsForm.goods_number"></el-input>
            </el-form-item>
            <el-form-item label="商品分类" prop="goods_cat">
              <el-cascader
                v-model="addGoodsForm.goods_cat"
                :options="cateList"
                :props="catePops"
                @change="cateHandleChange"
                clearable
              ></el-cascader>
            </el-form-item>
          </el-tab-pane>
          <!-- 商品动态参数 -->
          <el-tab-pane label="商品参数" name="1">
            <el-form-item :label="item.attr_name" v-for="item in manyData" :key="item.attr_id">
              <el-checkbox-group v-model="item.attr_vals">
                <el-checkbox :label="v" v-for="(v,i) in item.attr_vals" :key="i" border></el-checkbox>
              </el-checkbox-group>
            </el-form-item>
          </el-tab-pane>

          <!-- 商品静态属性 -->
          <el-tab-pane label="商品属性" name="2">
            <el-form-item :label="item.attr_name" v-for="item in onlyData" :key="item.attr_id">
              <el-input v-model="item.attr_vals"></el-input>
            </el-form-item>
          </el-tab-pane>
          <!-- 上传图片 -->
          <el-tab-pane label="商品图片" name="3">
            <el-upload
              :action="uploadURL"
              :on-preview="handlePreview"
              :on-remove="handleRemove"
              list-type="picture"
              :on-success="uploadSuccess"
              :headers="handerObj">
              <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
          </el-tab-pane>

          <!-- 商品内容 -->
          <el-tab-pane label="商品内容" name="4">
             <quill-editor  v-model = "addGoodsForm.goods_introduce"> </quill-editor>
             <el-button type="primary" @click = "add">添加商品</el-button>
          </el-tab-pane>
          
        </el-tabs>
      </el-form>
    </el-card>

    <!-- 图片上传 -->
    <el-dialog
  title="图片上传"
  :visible.sync="previewDialogVisible"
  width="50%">
    <img :src="previewPath" alt="">
</el-dialog>
  </div>
</template>

<script>
import _ from 'lodash'
export default {
  name: "AddGoods",
  data() {
    return {
      activeIndex: 0,
      addGoodsForm: {
        goods_name: "",
        goods_price: 0,
        goods_weight: 0,
        goods_number: 0,
        goods_cat: [],
        pics:[],
        goods_introduce:'',
        attr:[]
      },
      cateList: [],
      addGoodsRules: {
        goods_name: [
          { required: true, message: "请输入商品名称", trigger: "blur" }
        ],
        goods_price: [
          { required: true, message: "请输入商品价格", trigger: "blur" }
        ],
        goods_weight: [
          { required: true, message: "请输入商品重量", trigger: "blur" }
        ],
        goods_number: [
          { required: true, message: "请输入商品数量", trigger: "blur" }
        ],
        goods_cat: [
          { required: true, message: "请输入商品分类", trigger: "blur" }
        ]
      },
      catePops: {
        expandTrigger: "hover",
        value: "cat_id",
        label: "cat_name",
        children: "children"
      },
      //动态商品参数数据
      manyData: [],
      //商品静态属性数据
      onlyData: [],
      //上传图片请求路径
      uploadURL:"http://127.0.0.1:8888/api/private/v1/upload",
       //上传图片请求头
      handerObj:{
        Authorization:window.sessionStorage.getItem('token')
      },
      //图片真实路径
      previewPath:'',
      previewDialogVisible:false
    };
  },
  created() {
    this.getCateList();
  },
  computed: {
    cateId() {
      if (this.addGoodsForm.goods_cat.length == 3) {
        return this.addGoodsForm.goods_cat[2];
      }
    }
  },
  methods: {
    async getCateList() {
      const { data: res } = await this.$http.get("categories");
      if (res.meta.status != 200)
        return this.$message.error("获取商品分类失败");
      this.cateList = res.data;
    },
    cateHandleChange(val) {
      if (val.length < 3) {
        this.addGoodsForm.goods_cat = [];
      }
    },
    beforeLeave(newActiveName, oldActiveName) {
      if (oldActiveName == 0 && this.addGoodsForm.goods_cat.length != 3) {
        this.$message.error("请选择分类商品");
        return false;
      }
    },
    // 切换tan-pane方法
    async tabClicked() {
      // 获取商品动态参数
      if (this.activeIndex === "1") {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: "many" }
          }
        );
        if (res.meta.status != 200)
          return this.$message.error("获取商品动态参数失败");
        res.data.forEach(item => {
          item.attr_vals =
            item.attr_vals.length > 0 ? item.attr_vals.split(",") : [];
        });
        this.manyData = res.data;
        // 获取静态属性
      } else if (this.activeIndex == "2") {
        const { data: res } = await this.$http.get(
          `categories/${this.cateId}/attributes`,
          {
            params: { sel: "only" }
          }
        );
        if (res.meta.status !== 200)
          return this.$message.error("获取商静态属性失败");

        this.onlyData = res.data;
      }
    },
    handlePreview(file){
      this.previewDialogVisible = true;
      this.previewPath  = file.response.data.url;

    },
    handleRemove(file){
   
      let tmpPath = file.response.data.tmp_data;
      var index = this.addGoodsForm.pics.findIndex( x => x.pic === tmpPath)
       var tmp= this.addGoodsForm.pics.splice(index,1);
         
        console.log(this.addGoodsForm.pics);
         if(tmpPath === tmp.pic) return this.$message.success("删除图片成功")

    },
    uploadSuccess(res){
      if(res.meta.status !=200) return this.$message.error("图片上传失败");
       this.addGoodsForm.pics.push({pic:res.data.tmp_path})
       this.$message.success("图片上传成功")
       
    },
    add(){
      this.$refs.addFormRefs.validate( async (valid)=>{
        if(!valid) return this.$message.error("验证不通过")
            
          var form = _.cloneDeep(this.addGoodsForm)
              form.goods_cat = form.goods_cat.join(",")
             
              this.manyData.forEach(item =>{
                console.log(item);
                var  newInfo = {attr_id:item.attr_id,attr_value:item.attr_vals.join(' ')}
                 this.addGoodsForm.attr.push(newInfo)
              })
              this.onlyData.forEach(item =>{
                var  newInfo = {attr_id:item.attr_id,attr_value:item.attr_vals}
                 this.addGoodsForm.attr.push(newInfo)
              })
              form.attr = this.addGoodsForm.attr;
              const {data:res} = await this.$http.post('goods',form)
                  if(res.meta.status !=201) return this.$message.error("添加商品失败，请重试")
                    this.$message.success("添加商品成功")
                    this.$router.push('/goods')
      })
    }
  }
};
</script>

<style lang="less" scoped>
.el-steps {
  margin-bottom: 15px;
}

.quill-editor{
  height: 250px;
  box-sizing: border-box;
  margin: 0 0 60px 0;
}
img{
  width: 100%;
}
</style>